Eight people, including four policemen, and 27 wounded Tuesday when insurgents burst into the offices of the Diyala provincial council north of Baghdad, police said.

The attack was similar to the assault in March on the officials of the council in Salahuddin province in Saddam Hussein’s hometown of Tikrit. That attack claimed the lives of more than 50.

The attack began when a suicide bomber set off his explosives at the council buildings’ main checkpoint. Shortly after, a car bomb exploded nearby and four insurgents, wearing police uniforms, rushed into the building and began shooting.